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/*
* Copyright 2009 Corbin Simpson <MostAwesomeDude@gmail.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* on the rights to use, copy, modify, merge, publish, distribute, sub
* license, and/or sell copies of the Software, and to permit persons to whom
* the Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
* USE OR OTHER DEALINGS IN THE SOFTWARE. */
#include "r300_vs.h"
#include "r300_context.h"
#include "r300_tgsi_to_rc.h"
#include "tgsi/tgsi_dump.h"
#include "tgsi/tgsi_parse.h"
#include "radeon_compiler.h"
static void set_vertex_inputs_outputs(struct r300_vertex_program_compiler * c)
{
struct r300_vertex_shader * vs = c->UserData;
struct tgsi_shader_info* info = &vs->info;
boolean pointsize = false;
int out_colors = 0;
int colors = 0;
int out_generic = 0;
int generic = 0;
int i;
/* Fill in the input mapping */
for (i = 0; i < info->num_inputs; i++)
c->code->inputs[i] = i;
/* Fill in the output mapping */
for (i = 0; i < info->num_outputs; i++) {
switch (info->output_semantic_name[i]) {
case TGSI_SEMANTIC_PSIZE:
pointsize = true;
break;
case TGSI_SEMANTIC_COLOR:
out_colors++;
break;
case TGSI_SEMANTIC_FOG:
case TGSI_SEMANTIC_GENERIC:
out_generic++;
break;
}
}
struct tgsi_parse_context parser;
tgsi_parse_init(&parser, vs->state.tokens);
while (!tgsi_parse_end_of_tokens(&parser)) {
tgsi_parse_token(&parser);
if (parser.FullToken.Token.Type != TGSI_TOKEN_TYPE_DECLARATION)
continue;
struct tgsi_full_declaration * decl = &parser.FullToken.FullDeclaration;
if (decl->Declaration.File != TGSI_FILE_OUTPUT)
continue;
switch (decl->Semantic.SemanticName) {
case TGSI_SEMANTIC_POSITION:
c->code->outputs[decl->DeclarationRange.First] = 0;
break;
case TGSI_SEMANTIC_PSIZE:
c->code->outputs[decl->DeclarationRange.First] = 1;
break;
case TGSI_SEMANTIC_COLOR:
c->code->outputs[decl->DeclarationRange.First] = 1 +
(pointsize ? 1 : 0) +
colors++;
break;
case TGSI_SEMANTIC_FOG:
case TGSI_SEMANTIC_GENERIC:
c->code->outputs[decl->DeclarationRange.First] = 1 +
(pointsize ? 1 : 0) +
out_colors +
generic++;
break;
default:
debug_printf("r300: vs: Bad semantic declaration %d\n",
decl->Semantic.SemanticName);
break;
}
}
tgsi_parse_free(&parser);
}
void r300_translate_vertex_shader(struct r300_context* r300,
struct r300_vertex_shader* vs)
{
struct r300_vertex_program_compiler compiler;
struct tgsi_to_rc ttr;
/* Setup the compiler */
rc_init(&compiler.Base);
compiler.Base.Debug = 1;
compiler.code = &vs->code;
compiler.UserData = vs;
if (compiler.Base.Debug) {
debug_printf("r300: Initial vertex program\n");
tgsi_dump(vs->state.tokens, 0);
}
/* Translate TGSI to our internal representation */
ttr.compiler = &compiler.Base;
ttr.info = &vs->info;
r300_tgsi_to_rc(&ttr, vs->state.tokens);
compiler.RequiredOutputs = ~(~0 << vs->info.num_outputs);
compiler.SetHwInputOutput = &set_vertex_inputs_outputs;
/* Invoke the compiler */
r3xx_compile_vertex_program(&compiler);
if (compiler.Base.Error) {
/* Todo: Fail gracefully */
fprintf(stderr, "r300 VP: Compiler error\n");
abort();
}
/* And, finally... */
rc_destroy(&compiler.Base);
vs->translated = TRUE;
}
/* XXX get these to r300_reg */
#define R300_PVS_DST_OPCODE(x) ((x) << 0)
# define R300_VE_DOT_PRODUCT 1
# define R300_VE_MULTIPLY 2
# define R300_VE_ADD 3
# define R300_VE_MAXIMUM 7
# define R300_VE_SET_LESS_THAN 10
#define R300_PVS_DST_MATH_INST (1 << 6)
# define R300_ME_RECIP_DX 6
#define R300_PVS_DST_MACRO_INST (1 << 7)
# define R300_PVS_MACRO_OP_2CLK_MADD 0
#define R300_PVS_DST_REG_TYPE(x) ((x) << 8)
# define R300_PVS_DST_REG_TEMPORARY 0
# define R300_PVS_DST_REG_A0 1
# define R300_PVS_DST_REG_OUT 2
# define R300_PVS_DST_REG_OUT_REPL_X 3
# define R300_PVS_DST_REG_ALT_TEMPORARY 4
# define R300_PVS_DST_REG_INPUT 5
#define R300_PVS_DST_OFFSET(x) ((x) << 13)
#define R300_PVS_DST_WE(x) ((x) << 20)
#define R300_PVS_DST_WE_XYZW (0xf << 20)
#define R300_PVS_SRC_REG_TYPE(x) ((x) << 0)
# define R300_PVS_SRC_REG_TEMPORARY 0
# define R300_PVS_SRC_REG_INPUT 1
# define R300_PVS_SRC_REG_CONSTANT 2
# define R300_PVS_SRC_REG_ALT_TEMPORARY 3
#define R300_PVS_SRC_OFFSET(x) ((x) << 5)
#define R300_PVS_SRC_SWIZZLE(x) ((x) << 13)
# define R300_PVS_SRC_SELECT_X 0
# define R300_PVS_SRC_SELECT_Y 1
# define R300_PVS_SRC_SELECT_Z 2
# define R300_PVS_SRC_SELECT_W 3
# define R300_PVS_SRC_SELECT_FORCE_0 4
# define R300_PVS_SRC_SELECT_FORCE_1 5
# define R300_PVS_SRC_SWIZZLE_XYZW \
((R300_PVS_SRC_SELECT_X | (R300_PVS_SRC_SELECT_Y << 3) | \
(R300_PVS_SRC_SELECT_Z << 6) | (R300_PVS_SRC_SELECT_W << 9)) << 13)
# define R300_PVS_SRC_SWIZZLE_ZERO \
((R300_PVS_SRC_SELECT_FORCE_0 | (R300_PVS_SRC_SELECT_FORCE_0 << 3) | \
(R300_PVS_SRC_SELECT_FORCE_0 << 6) | \
(R300_PVS_SRC_SELECT_FORCE_0 << 9)) << 13)
# define R300_PVS_SRC_SWIZZLE_ONE \
((R300_PVS_SRC_SELECT_FORCE_1 | (R300_PVS_SRC_SELECT_FORCE_1 << 3) | \
(R300_PVS_SRC_SELECT_FORCE_1 << 6) | \
(R300_PVS_SRC_SELECT_FORCE_1 << 9)) << 13)
#define R300_PVS_MODIFIER_X (1 << 25)
#define R300_PVS_MODIFIER_Y (1 << 26)
#define R300_PVS_MODIFIER_Z (1 << 27)
#define R300_PVS_MODIFIER_W (1 << 28)
#define R300_PVS_NEGATE_XYZW \
(R300_PVS_MODIFIER_X | R300_PVS_MODIFIER_Y | \
R300_PVS_MODIFIER_Z | R300_PVS_MODIFIER_W)
struct r300_vertex_program_code r300_passthrough_vertex_shader = {
.length = 8, /* two instructions */
/* MOV out[0], in[0] */
.body.d[0] = R300_PVS_DST_OPCODE(R300_VE_ADD) |
R300_PVS_DST_REG_TYPE(R300_PVS_DST_REG_OUT) |
R300_PVS_DST_OFFSET(0) | R300_PVS_DST_WE_XYZW,
.body.d[1] = R300_PVS_SRC_REG_TYPE(R300_PVS_SRC_REG_INPUT) |
R300_PVS_SRC_OFFSET(0) | R300_PVS_SRC_SWIZZLE_XYZW,
.body.d[2] = R300_PVS_SRC_SWIZZLE_ZERO,
.body.d[3] = 0x0,
/* MOV out[1], in[1] */
.body.d[4] = R300_PVS_DST_OPCODE(R300_VE_ADD) |
R300_PVS_DST_REG_TYPE(R300_PVS_DST_REG_OUT) |
R300_PVS_DST_OFFSET(1) | R300_PVS_DST_WE_XYZW,
.body.d[5] = R300_PVS_SRC_REG_TYPE(R300_PVS_SRC_REG_INPUT) |
R300_PVS_SRC_OFFSET(1) | R300_PVS_SRC_SWIZZLE_XYZW,
.body.d[6] = R300_PVS_SRC_SWIZZLE_ZERO,
.body.d[7] = 0x0,
.inputs[0] = 0,
.inputs[1] = 1,
.outputs[0] = 0,
.outputs[1] = 1,
.InputsRead = 3,
.OutputsWritten = 3
};
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